Georg Fischer supplies a line of metal butterfly valves and spare parts amongst other valves and actuators. The lineup is comprised of wafer, lug with hand lever or reduction gear with hand-wheel, electric wafer with or without a manual override, pneumatic wafer, electric lug without a manual override, and pneumatic lug butterfly valves without a manual override.

Industrial Pipe & Supply distributes a line of iron and PVC butterfly valves. Sanitary stainless steel butterfly valves offer 360 degree installation and may be installed in any position. Wafer style butterfly valves are a seated wafer style for general purpose use. The 17-4PH stainless steel stem eliminates twisting. They are suitable for on-off or throttling service.

GEMU is a manufacturer of plastic and metal butterfly valves. The 410 plastic butterfly valve is a 2/2 way, pneumatically operated valve with a plastic piston actuator that is corrosion-resistant and maintenance-free. The manually operated 417 2/2 way plastic butterfly valve has a handwheel with an integrated locking device to prevent accidental operation. The 423 plastic valve is a low maintenance electrical actuator with a reversible dc motor. GEMU's metal butterfly valves come in the same basic configurations as their plastic valve counterparts.

Asahi/America manufactures a variety of butterfly valves. They offer a wafer style, 2"-10", lever and gear model, and an industrial grade lever 1 1/2"-8" and gear 8"-14" model. Large size industrial grade, 18"-24" gear butterfly valves are available. Asahi also makes dampers and pool valves for chlorinated water. Their PDCPD giant butterfly valve comes in a large diameter 28"-40" gear style. Asahi butterfly valves are manufactured for mines, landfills, chemical processing plants, water and wastewater treatment plants, swimming pools and aquariums.

DynaQuip Controls has been a butterfly valve manufacturer for over 40 years. They offer sizes from 1" to 48", lug or wafer styles, stainless steel bodies, aluminum, cast iron or ductile iron, and a variety of disc materials from ductile iron to teflon encapsulated. Their manual butterfly valves come in a 340/342 Series with nylon coated disk. The 500/522 Series are resilient seated valves. The 600/622 Series are cartridge seated economy valves. The 899/892 Series are split wafer design. The High Seal Series is a high performance butterfly valve. DynaQuip also manufactures electrically and pneumatically actuated butterfly valves.

Matco-Norca produces butterfly valves in wafer styles, wafer and lug styles and double stem. The B1-RLO wafer style PVC butterfly valve features a lever operator with 10 positions, stainless steel stem, EPDM liner and seat, polypropylene disc, a size range from 2 to 6 inches and 200 WOG. The B1-RWG wafer style butterfly valve features a gear operator with 10 positions, stainless steel stem, EPDM liner and seat, polypropylene disc, a size range from 8 to 12 inches and 200 WOG. The B5 wafer and lug style butterfly valve features a 10 position lever handle, gear operator of 2 to 24 inches, two stage worm gear operator of 16 to 24 inches, teflon graphite stem bushings, ductile iron nickel plated disc and a size range of 2 to 24 inches. The B6 wafer and lug style butterfly valve features a 10 position lever handle, gear operator of 2 to 12 inches, one piece valve stem, teflon stem bushings, ductile iron nickel plated disc, and a size range of 2 to 16 inches for wafer styles and 2 to 12 inches for lug styles. The B7 wafer style butterfly valve features a 10 position lever handle, cast iron body, short neck with zurk fitting, two piece valve stem, teflon stem bushings, and a size range from 2 to 10 inches.

Nu-Con manufactures butterfly valves in a series of flanged, wafer and demountable styles. The butterfly valves are supplied with pneumatic actuators or manual handles. Flanged butterfly valves are suited for general powder handling applications and feature locking pins, aluminum body and a size range for 8 to 16 inches. Wafer style butterfly valves are more suited for light duty operations and are available in sizes 3 to 12 inches. Sanitary demountable butterfly valves feature SS316 body construction, moulded food grade rubber seals, tri-clamp, tool-free assembly, and a size range from 4 to 12 inches.